package com.lh.java.basic.reflect;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class TesterReflect {     
	public Object copy(Object object) throws Exception {     
	// 获得对象的类型     
	Class<?> classType = object.getClass();     
	System.out.println("Class:" + classType.getName());     

	// 通过默认构造方法创建一个新的对象     
	Object objectCopy = classType.getConstructor(new Class[] {}).newInstance(new Object[] {});     

	// 获得对象的所有属性     
	Field fields[] = classType.getDeclaredFields();     

	for (int i = 0; i < fields.length; i++) {     
	Field field = fields[i];     

	String fieldName = field.getName();     
	String firstLetter = fieldName.substring(0, 1).toUpperCase();     
	// 获得和属性对应的getXXX()方法的名字     
	String getMethodName = "get" + firstLetter + fieldName.substring(1);     
	// 获得和属性对应的setXXX()方法的名字     
	String setMethodName = "set" + firstLetter + fieldName.substring(1);     

	// 获得和属性对应的getXXX()方法     
	Method getMethod = classType.getMethod(getMethodName, new Class[] {});     
	// 获得和属性对应的setXXX()方法     
	Method setMethod = classType.getMethod(setMethodName, new Class[] { field.getType() });     

	// 调用原对象的getXXX()方法     
	Object value = getMethod.invoke(object, new Object[] {});     
	System.out.println(fieldName + ":" + value);     
	// 调用拷贝对象的setXXX()方法     
	setMethod.invoke(objectCopy, new Object[] { value });     
	}     
	return objectCopy;     
	}     

	public static void main(String[] args) throws Exception {     
	Customer customer = new Customer("Tom", 21);     
	customer.setId(new Long(1));     

	Customer customerCopy = (Customer) new TesterReflect().copy(customer);     
	System.out.println("Copy information:" + customerCopy.getId() + " "    
	+ customerCopy.getName() + " " + customerCopy.getAge());     
	}     
	}     

	class Customer {     
	private Long id;     

	private String name;     

	private int age;     

	public Customer() {     
	}     

	public Customer(String name, int age) {     
	this.name = name;     
	this.age = age;     
	}     

	public Long getId() {     
	return id;     
	}     

	public void setId(Long id) {     
	this.id = id;     
	}     

	public String getName() {     
	return name;     
	}     

	public void setName(String name) {     
	this.name = name;     
	}     

	public int getAge() {     
	return age;     
	}     

	public void setAge(int age) {     
	this.age = age;     
	}     
	}  
